2. 外语
  3. Nearly half the world’s population will experience【C1】______water shortages by 2025, 【C2】______the United Nations. Wars【C3】_____

Nearly half the world’s population will experience【C1】______water shortages by 2025, 【C2】______the United Nations. Wars【C3】_____

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问题     Nearly half the world’s population will experience【C1】______water shortages by 2025, 【C2】______the United Nations. Wars【C3】______access to water are a rising possibility and the main【C4】______in Africa during the next 25 years could be over this most precious commodity, as countries fight for access to【C5】______resources. "Potential water wars are likely in areas【C6】______rivers and lakes are shared by more than one country," says Mark Evans. Evans predicts that "population growth and economic development will【C7】______nearly one【C8】______two people in Africa living in countries【C9】______water scarcity or【C10】______is known as ’water stress’ within 25 years." Water scarcity is defined as less than 1,000 cubic metres of water available per person per year,【C11】______water stress means less than 1,500 cubic metres of water is available per person per year. The report says that by 2025, 12 more African countries will【C12】______the 13 that already suffer from water stress or water scarcity. 【C13】______makes the water issue even more urgent is that demand for water will grow increasingly fast as larger areas are【C14】______under crops and economic development. Evans adds that "the strong【C15】______that the world is experiencing climate change【C16】______this urgency."
    How to deal with water shortages is in the forefront of the【C17】______between environmental activists on the one hand and governments and construction firms【C18】_________. At the recent World Summit on Sustainable Development, activists continued their campaign to【C19】______dam construction, while many governments were outraged about a vocal【C20】______thwarting their plans.
【C12】
选项 A、participate
B、enter
C、join in
D、join
答案D
解析 动词辨析题。四个选项均可表示“参加，加入”，但participate为不及物动词，需要加介词in后再加宾语；enter表示“参加，加入，成为其中一员”；join in一般指“参加竞赛、娱乐、游戏等活动”；join指“参加(某组织)，加入(某处任职)，参加到某个人群中去从而成为其中一员”。本句表达的意思是“在早已遭受干旱的13个国家的队伍中，又有12个非洲国家将加入其中”，这与加入某个组织类似，所以选join。
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